Online utility
Base64 Encoder and Decoder
Processed in your browser. Learn how data is handled
Convert Unicode text to Base64 and back using byte-safe browser APIs. Standard and URL-safe alphabets are supported for text payloads.
Interactive workspace
Base64 Encoder Decoder workspace
Simple workflow
How to use Base64 Encoder Decoder
- Choose encode or decode
Enter text or Base64, select the alphabet and operation, then copy the converted output.
Common questions
Frequently asked questions
Is Unicode supported?
Yes. Text is converted through UTF-8 bytes before Base64 encoding and after decoding.